SHENZHEN, Dec 25 — Chinese drone maker DJI recently opened its first bricks and mortar store in Shenzhen. It's the world's biggest manufacturer of personal drones.

Rosalind Chin takes a look at the challenges it faces in staying number one. — BloombergImage of a drone made by the world's largest manufacturer, DJI of China, from the Bloomberg video.
Image of a drone made by the world's largest manufacturer, DJI of China, from the Bloomberg video.